Chain-casting mold.



PATENTED AUG. 18, 1903.

' J. BONE & M. REID.

CHAIN CASTING MOLD. APPLICATION FILED MAR. 31. 1903.

1 T E E H S S m. M sda 25 N0 MODEL.

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Ill Ill 5 WWW w M 0 5 a 0/ M g v m 1 1a 5/ /a q. E M b M M PATENTED' AUG. 1a, 1903. J. BONE & M. REID.

"CHAIN CASTING MOLD. APPLICATION FILED MAR. 31. 1903. no MODEL.

I I 2 EETS-SHEET 2.

*- W VA u A 4 i i E: 5 l I/ g i 6 b Patented August 18, 1903.

JAMES BONE AND MORRIS BEID, GLASGOlV, SCOTLAND.

CHAIN-CASTING MOLD.

SPECIFICATION forming part of Letters Patent No. 736,678, dated August 18, 1903.

Application filed March 31, 1903. Serial No. 150.398. (N0 model.)

To all whom it may concern:

Be it known that we, JAMES BONE, inerchant, and MORRIS REID, engineer, subjects of the King of Great Britain and Ireland, and residents of Glasgow, Scotland, have invented certain new and useful Improvements in the Manufacture of Railway-Viagon Links, Chains, and Like Articles, of'which the following is a specification, and for which a patent has been applied for in Great Britain, No.19,129, dated the 1st day of September, 1902.

Our invention has reference to improvements in the manufacture of railway carriage and wagon links, chains, chain cables, and like articles by casting same in suitable. metal in a chill or metal mold-box made in two parts or plates, constructed and fitted in the manner to be described.

In order that others skilled in the art to which our invention relates may understand the nature of same, we have hereunto appended two sheets of illustrative drawings, in which- Figure 1 illustrates a set of wagon-links of ordinary form such as may be cast at one operation according to our invention. Fig. 2 is a plan of the mold-box for the links illustrated by Fig. 1 Without the counterbalancing-weights. Fig. 3 is a sectional elevation taken on the line 3 3 in Fig. 2. Fig. at is an inverted plan of the two upper portable blocks. Fig. 5 is a plan of the two lower portable blocks. Fig; 6 shows two half-sectional elevations at right angles to Fig. 3, the left-hand section being taken on the line 6 6 and the right-hand section 7 7 both in Fig. 3. Fig. 7 is a plan, to a reduced scale, of the lower plate of the mold-box. Fig. Sis an inverted plan, to a similar scale, of the upper plate of the mold-box. Fig. 9 illustrates a method of securing together the two plates of a mold-box which may be used for small sizes.

For casting a set of railway-wagon links such as are illustrated by Fig. 1 and which are made thicker at the ends to compensate for the wear at their parts a mold-box is used consisting of two plates A and B. The lower plate B is supported by side standards Band carries the guide-rod A, on which the upper plate A slides up and down, as required, and which is counterbalanced by the weights 0, suspended by the chains 0, passing over the pulleys D on the shaft D, carried in the brackets E, and rotated by any suitable means, such as a crank-handle. The part A of the guiderods A are formed slightly conoidal in order to effect an exact fit when the plate A is lowered onto the lower plate B. The upper plateA is formed on its under surface with matrices a for one longitudinal half of each of the two end links and with a recess a to receive the upper pair of the portable blocks a, Figs. 3 and 6, and shown in inverted plan view by Fig. 4. The lower plate B is also formed with matrices a for the other longitudinal half of the end links and a recess B to receive the lower pair of portable blocks 2). Each meeting face of each pair of portable blocks a b is also formed with a matrix I) to form the mold for the center link. The upper portable blocks a are formed with three gates a each communicating with one of the molds for the links by which the molten metal is poured. The portable blocks at and b are also formed with matrices to complete the molds for the end links.

In casting links such as illustrated by Fig. l the upper plate A is raised by the chains 0 and counterweights O to the upper end of the guide-rods A, as indicated in dotted lines in Fig. 3. The portable blocks b are placed in the cavity B of the lower plate B, which has holes formed in it to allow of dust or other matter being easily cleaned out, and the upper portable blocks a are placed above them. The upper plate A is then lowered down onto thelower one B and the upper portable blocks a, the inclined surfaces forcing the loose parts into place and making an exact fit. The molten metal is then poured by the gates a which project up through the upper plate A. The upper plate is then raised and the portable blocks and the cast links removed and the process repeated. Small-sized mold-boxes may be simply clamped or secured together by studs F and cotter- I along with the links, or the links may be cast in combination with such articles already formed. I

To form chain cables or chains, the moldboxes with portable blocks may be formed practically as described for a series of links, or sets of three links may be cast in the manner described at one operation and these sets of links be connected to one another by casting a connecting-link between each series, the formed links being inserted in the moldbox for this purpose.

Having now described our invention, what we claim as new, and desire to secure by Letters Patent, is

1. In the casting of railway-wagon links in sets connected together, the combination in a mold-box of upper and lower plates and portable blocks substantially as set forth.

2. In the casting of railway-wagon links in sets connected together, the combination of a lower plate having a pair of portable blocks fitted in a cavity therein and formed with matrices, of an upper plate raised and lowered by chains and counterweights also formed with matrices and receiving an upper pair of portable blocks substantially as set forth.

3. In the casting of railway-wagon links in sets connected together, the combination comprising the upper and lower plates A and B the portable blocks a and b all formed with matrices,the guide-rodsA' the counterweights O and chains 0, substantially as set forth.

4:. In the casting of railway-wagon links in sets connected together, the combination comprising the upper plate A, the upper pair of portable blocks a, the lower plate B, the lower pair of portable blocks 19 substantially as set forth.

5. In the casting of railway-wagon links in sets connected together, the combination with a mold-box having upper and lower plates,

of the portable blocks a and b formed with matrices on their meeting faces substantially as set forth.

In testimony whereofwe have signed our names to this specification in the presence of two subscribing witnesses.

JAS. BONE. MORRISv REID.

Witnesses:

R. O. THOMSON, WM. RUTHERFORD. 

